# Question: A psychologist studying perceived quality of life in a large

A psychologist studying perceived “quality of life” in a large number of cities (N 5 150) came up with the following equation using mean temperature (Temp), median income in $1,000 (Income), per capita expenditure on social services (SocSer), and population density (Popul) as predictors.

(a) Interpret the above regression equation in terms of the coefficients.

(b) Assume a city has a mean temperature of 55°, a median income of $12,000, spends $500 per capita on social services, and has a population density of 200 people per block. What is its predicted Quality of Life score?

(c) What would we predict in a different city that is identical in every way except that it spends $100 per capita on social services?

(a) Interpret the above regression equation in terms of the coefficients.

(b) Assume a city has a mean temperature of 55°, a median income of $12,000, spends $500 per capita on social services, and has a population density of 200 people per block. What is its predicted Quality of Life score?

(c) What would we predict in a different city that is identical in every way except that it spends $100 per capita on social services?

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